[gdk-pixbuf] Add some tests for resource APIs

[Matthias Clasen <matthiasc src gnome org>]

commit 1e4ffb186fb44779b1ce26a5fafa0a40c5280521
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 17 20:09:37 2013 -0500

    Add some tests for resource APIs

 tests/Makefile.am             |   16 +++++
 tests/pixbuf-resource.c       |  139 +++++++++++++++++++++++++++++++++++++++++
 tests/resources.gresource.xml |    8 +++
 3 files changed, 163 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index c3246af..ca82836 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -33,6 +33,7 @@ test_programs =                       \
        pixbuf-threads                  \
        pixbuf-icc                      \
        pixbuf-stream                   \
+       pixbuf-resource                 \
        $(NULL)
 
 dist_test_data =                       \
@@ -43,4 +44,19 @@ dist_test_data =                     \
        icc-profile.png                 \
        $(wildcard $(srcdir)/test-images/*)
 
+pixbuf_resource_SOURCES =              \
+       pixbuf-resource.c               \
+       resources.h                     \
+       resources.c
+
+BUILT_SOURCES = resources.h resources.c
+DISTCLEANFILES = resources.h resources.c
+EXTRADIST = resources.gresource.xml
+
+resources.h: resources.gresource.xml
+       $(AM_V_GEN) $(GLIB_COMPILE_RESOURCES) $(srcdir)/resources.gresource.xml --target=$@ 
--sourcedir=$(srcdir) --generate-header
+
+resources.c: resources.gresource.xml
+       $(AM_V_GEN) $(GLIB_COMPILE_RESOURCES) $(srcdir)/resources.gresource.xml --target=$@ 
--sourcedir=$(srcdir) --generate-source
+
 -include $(top_srcdir)/git.mk
diff --git a/tests/pixbuf-resource.c b/tests/pixbuf-resource.c
new file mode 100644
index 0000000..3a4b059
--- /dev/null
+++ b/tests/pixbuf-resource.c
@@ -0,0 +1,139 @@
+/* -*- Mode: C; c-basic-offset: 2; -*- */
+/* GdkPixbuf library - test loaders
+ *
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Author: Matthias Clasen
+ */
+
+#include "config.h"
+#include "gdk-pixbuf/gdk-pixbuf.h"
+#include <string.h>
+
+#define compare_option(p1, p2, key) \
+  g_strcmp0 (gdk_pixbuf_get_option (p1, key), gdk_pixbuf_get_option (p2, key))
+
+static gboolean
+pixdata_equal (GdkPixbuf *p1, GdkPixbuf *p2)
+{
+  if (gdk_pixbuf_get_colorspace (p1) != gdk_pixbuf_get_colorspace (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_n_channels (p1) != gdk_pixbuf_get_n_channels (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_bits_per_sample (p1) != gdk_pixbuf_get_bits_per_sample (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_width (p1) != gdk_pixbuf_get_width (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_height (p1) != gdk_pixbuf_get_height (p2))
+    return FALSE;
+  if (gdk_pixbuf_get_rowstride (p1) != gdk_pixbuf_get_rowstride (p2))
+    return FALSE;
+  if (memcmp (gdk_pixbuf_get_pixels (p1), gdk_pixbuf_get_pixels (p2),
+          gdk_pixbuf_get_byte_length (p1)) != 0)
+    return FALSE;
+
+  return TRUE;
+}
+
+static gboolean
+pixbuf_equal (GdkPixbuf *p1, GdkPixbuf *p2)
+{
+  if (!pixdata_equal (p1, p2))
+    return FALSE;
+  if (compare_option (p1, p2, "Title") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "Artist") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "x_hot") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "y_hot") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "orientation") != 0)
+    return FALSE;
+  if (compare_option (p1, p2, "icc-profile") != 0)
+    return FALSE;
+
+  return TRUE;
+}
+
+static void
+test_resource (void)
+{
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *pixbuf, *ref;
+
+  path = g_test_get_filename (G_TEST_DIST, "icc-profile.png", NULL);
+  ref = gdk_pixbuf_new_from_file (path, &error);
+  g_assert_no_error (error);
+
+  pixbuf = gdk_pixbuf_new_from_resource ("/test/resource/icc-profile.png", &error);
+  g_assert_no_error (error);
+  g_assert (pixbuf_equal (pixbuf, ref));
+  g_object_unref (pixbuf);
+  
+  pixbuf = gdk_pixbuf_new_from_resource ("/test/resource/icc-profile.pixdata", &error);
+  g_assert_no_error (error);
+  g_assert (pixdata_equal (pixbuf, ref));
+  g_object_unref (pixbuf);
+
+  pixbuf = gdk_pixbuf_new_from_resource ("/no/such/resource", &error);
+  g_assert (pixbuf == NULL);
+  g_assert_error (error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND);
+  g_clear_error (&error);
+
+  pixbuf = gdk_pixbuf_new_from_resource ("resource:///test/resource/icc-profile.png", &error);
+  g_assert (pixbuf == NULL);
+  g_assert_error (error, G_RESOURCE_ERROR, G_RESOURCE_ERROR_NOT_FOUND);
+  g_clear_error (&error);
+
+  g_object_unref (ref);
+}
+
+static void
+test_resource_at_scale (void)
+{
+  const gchar *path;
+  GError *error = NULL;
+  GdkPixbuf *pixbuf, *ref;
+
+  path = g_test_get_filename (G_TEST_DIST, "icc-profile.png", NULL);
+  ref = gdk_pixbuf_new_from_file_at_scale (path, 40, 10, FALSE, &error);
+  g_assert_no_error (error);
+
+  pixbuf = gdk_pixbuf_new_from_resource_at_scale ("/test/resource/icc-profile.png", 40, 10, FALSE, &error);
+  g_assert_no_error (error);
+  g_assert (pixbuf_equal (pixbuf, ref));
+  g_object_unref (pixbuf);
+  
+  g_object_unref (ref);
+}
+
+int
+main (int argc, char **argv)
+{
+#if !GLIB_CHECK_VERSION (2, 35, 3)
+  g_type_init ();
+#endif
+
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/pixbuf/resource", test_resource);
+  g_test_add_func ("/pixbuf/resource/at-scale", test_resource_at_scale);
+
+  return g_test_run ();
+}
diff --git a/tests/resources.gresource.xml b/tests/resources.gresource.xml
new file mode 100644
index 0000000..3114289
--- /dev/null
+++ b/tests/resources.gresource.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/test/resource">
+    <file>icc-profile.png</file>
+    <file preprocess="to-pixdata" alias="icc-profile.pixdata">icc-profile.png</file>
+  </gresource>
+</gresources>
+